AKG C 542 BL User Instructions page 10

1 Precaution/Description
1.1 Precaution
Please make sure that the piece of equipment your
microphone will be connected to fulfills the safety reg-
ulations in force in your country and is fitted with a
ground lead.
1.2 Unpacking
• C 542 BL
• Connecting cable w/phantom power adapter
• Adhesive compound
Check that the packaging contains all of the items list-
ed above. Should any item be missing, please contact
your AKG dealer.
1.3 Optional Accessories
• MK 9/10
• B 18
1.4 Features
• Rugged construction
• Low self-noise
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• Low current consumption
• High reliability
• Transformerless output
• Operates on any phantom power source to
DIN 45 596 / IEC 268-15
• Built-in switchable, 150 Hz, 12 dB/octave bass
cut filter
1.5 Brief Description
The C 542 BL is a boundary microphone. The trans-
ducer element is flush mounted in a thin disk. If you
mount the microphone on an acoustically reflective
boundary (wall, floor, ceiling), the sound entry will be
positioned almost in the same plane as the acousti-
cally reflective surface and will point toward the sound
source. This method prevents comb filter effects and
other interference that would normally cause problems
in microphones placed near reflective surfaces.
The sensitivity and frequency response of the micro-
phone depends on the disk position. The larger the
boundary, the smoother the resulting frequency re-